Biocatalytical synthesis and monolayer studies of multiple hydroxylated wax esters | Zendy

Lokotsch Wolfram | Zendy; Lang Siegmund | Zendy; Möbius Dietmar | Zendy; Wagner Fritz | Zendy

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Biocatalytical synthesis and monolayer studies of multiple hydroxylated wax esters

Author(s) -

Lokotsch Wolfram,

Lang Siegmund,

Möbius Dietmar,

Wagner Fritz

Publication year - 1996

Publication title -

journal of the american oil chemists' society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.512

H-Index - 117

eISSN - 1558-9331

pISSN - 0003-021X

DOI - 10.1007/bf02523510

Subject(s) - wax , monolayer , transesterification , chemistry , wax ester , substrate (aquarium) , yield (engineering) , organic chemistry , solubility , chemical engineering , catalysis , materials science , composite material , biochemistry , oceanography , engineering , geology

The continuous production of aleuritic acid decyl ester has been investigated with Lipozyme TM as biocatalyst in a fixed‐bed reactor. To avoid the limiting effects of mean substrate solubility, the direct synthesis without organic solvents was chosen, whereby a yield of 90% was obtained depending on the residence time. A comparison of different reaction paths to synthesize a centrally dihydroxylated decyl ester indicated a preference for transesterification of the methyl ester. Under external compression, the interfacial behavior of several enzymatically produced hydroxy wax esters was determined with a Langmuir film balance to find a structure/efficiency relationship. Brewster‐angle microscopy allowed direct visualization of a wax ester monolayer at the air/water interface.

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